U.S. patent application number 10/290150 was filed with the patent office on 2003-07-03 for use of particular aminosilicones as a pre- or post-treatment of processes for bleaching keratin fibers.
Invention is credited to Devin-Baudoin, Priscille, Sabbagh, Anne.
Application Number | 20030121108 10/290150 |
Document ID | / |
Family ID | 8869199 |
Filed Date | 2003-07-03 |
United States Patent
Application |
20030121108 |
Kind Code |
A1 |
Devin-Baudoin, Priscille ;
et al. |
July 3, 2003 |
Use of particular aminosilicones as a pre- or post-treatment of
processes for bleaching keratin fibers
Abstract
A pre- or post-treatment composition for the process for
bleaching human keratin fibers, such as hair, comprising at least
one particular aminosilicone as well as processes for bleaching
human keratin fibers, such as hair, comprising a pre- or
post-treatment with a composition comprising at least one
particular aminosilicone.
Inventors: |
Devin-Baudoin, Priscille;
(Vanves, FR) ; Sabbagh, Anne; (Rueil Malmaison,
FR) |
Correspondence
Address: |
Thomas L. Irving
FINNEGAN, HENDERSON, FARABOW,
GARRETT & DUNNER, L.L.P.
1300 I Street, N.W.
Washington
DC
20005-3315
US
|
Family ID: |
8869199 |
Appl. No.: |
10/290150 |
Filed: |
November 8, 2002 |
Current U.S.
Class: |
8/405 ; 8/406;
8/407 |
Current CPC
Class: |
A61K 2800/884 20130101;
A61Q 5/00 20130101; A61K 8/898 20130101; A61Q 5/08 20130101 |
Class at
Publication: |
8/405 ; 8/406;
8/407 |
International
Class: |
A61K 007/13 |
Foreign Application Data
Date |
Code |
Application Number |
Nov 8, 2001 |
FR |
01 14471 |
Claims
What is claimed is:
1. A process for bleaching human keratin fibers comprising applying
a bleaching composition to said fibers and, either before or after
applying said bleaching composition, applying a pre- or
post-treatment composition comprising at least one aminosilicone
comprising at least one aminoethylimino(C.sub.4-C.sub.8)alkyl
group.
2. The process according to claim 1, wherein said human keratin
fibers are hair.
3. The process according to claim 1, wherein the at least one
aminosilicone has the following formula: 2wherein: A is chosen from
linear and branched C.sub.4-C.sub.8 alkylene radicals; m and n are
numbers such that the sum (n+m) ranges from 1 to 2000; n is a
number ranging from 0 to 1999; and m is a number ranging from 1 to
2000.
4. The process according to claim 3, wherein the sum (n+m) ranges
from 50 to 150.
5. The process according to claim 3, wherein n is a number ranging
from 49 to 149.
6. The process according to claim 3, wherein m is a number ranging
from 1 to 10.
7. The process according to claim 3, wherein A is chosen from
linear and branched C.sub.4 alkylene radicals.
8. The process according to claim 3, wherein the viscosity of the
at least one aminosilicone is greater than 25 000 mm.sup.2/s at
25.degree. C.
9. The process according to claim 1, wherein the viscosity of the
least one aminosilicone ranges from 30 000 to 200 000 mm.sup.2/s at
25.degree. C.
10. The process according to claim 9, wherein the viscosity of the
least one aminosilicone ranges from 30 000 to 150 0000 mm.sup.2/s
at 25.degree. C.
11. The process according to claim 1, wherein the at least one
aminosilicone has a weight-average molecular mass ranging from 2000
to 1 000 000.
12. The process according to claim 11, wherein the at least one
aminosilicone has a weight-average molecular mass ranging from 3500
to 200 000.
13. The process according to claim 1, wherein the at least one
aminosilicone is in the form of an oil-in-water emulsion comprising
at least one surfactant.
14. The process according to claim 13, wherein the oil-in-water
emulsion comprises at least one surfactant chosen from cationic and
nonionic surfactants.
15. The process according to claim 13, wherein the particle size of
said at least one aminosilicone ranges from 3 to 500
nanometers.
16. The process according to claim 15, wherein the particle size of
said at least one aminosilicone ranges from 5 to 300
nanometers.
17. The process according to claim 16, wherein the particle size of
said at least one aminosilicone ranges from 10 to 275
nanometers.
18. The process according to claim 17, wherein the particle size of
said at least one aminosilicone ranges from 150 to 275
nanometers.
19. The process according to claim 1, wherein the at least one
aminosilicone is present in an amount ranging from 0.01% to 20% by
weight relative to the total weight of the composition.
20. The process according to claim 19, wherein the at least one
aminosilicone is present in an amount ranging from 0.1% to 15% by
weight relative to the total weight of the composition.
21. The process according to claim 20, wherein the at least one
aminosilicone is present in an amount ranging from 0.5% to 10% by
weight relative to the total weight of the composition.
22. The process according to claim 1, wherein the pre- or
post-treatment composition is provided in a form chosen from
lotions, gels, creams, shampoos, sticks, mousses and sprays.
23. The process according to claim 1, wherein the pre- or
post-treatment composition is packaged in a pump-dispenser bottle
or in an aerosol container.
24. The process according to claim 1, wherein the pre- or
post-treatment composition is combined with at least one propellant
chosen from alkanes, dimethyl ether, nitrogen, nitrous oxide,
carbon dioxide and haloalkanes.
25. The process according to claim 1, wherein the pre- or
post-treatment composition comprises at least one surfactant chosen
from nonionic, cationic, anionic and amphoteric surfactants.
26. The process according to claim 25, wherein the pre- or
post-treatment composition comprises a mixture of surfactants
comprising at least one anionic surfactant and at least one other
surfactant chosen from nonionic and amphoteric surfactants.
27. The process according to claim 1, wherein the pre- or
post-treatment composition comprises at least one additional
polymer other than the at least one aminosilicone comprising at
least one aminoethylimino(C.sub.4-C- .sub.8)alkyl group.
28. The process according to claim 27, wherein said at least one
additional polymer is chosen from nonionic, cationic, anionic and
amphoteric polymers.
29. The process according to claim 28, wherein said at least one
additional polymer is an aminosilicone different than the at least
one aminosilicone comprising at least one
aminoethylimino(C.sub.4-C.sub.8)alk- yl group.
30. The process according to claim 1, wherein the pH of the pre- or
post-treatment composition ranges from 2 to 11.
31. The process according to claim 30, wherein the pH of the pre-
or post-treatment composition ranges from 4 to 9.
32. The process according to claim 1, wherein the pre-treatment
composition or post-treatment composition is left to act for a time
ranging from a few seconds to 60 minutes.
33. The process according to claim 32, wherein the pre-treatment or
post-treatment composition is left to act for a time ranging from
30 seconds to 15 minutes.
34. The process according to claim 1, wherein said post-treatment
composition is applied between two bleaching operations.
35. The process according to claim 34, wherein said post-treatment
composition is applied from 1 to 60 times between two bleaching
operations.
36. The process according to claim 35, wherein said post-treatment
composition is applied from 2 to 30 times between two bleaching
operations.
37. A process for improving the condition of human keratin fibers
after bleaching, comprising applying to said fibers before or after
bleaching a pre- or post-treatment composition comprising at least
one aminosilicone comprising at least one
aminoethylimino(C.sub.4-C.sub.8)alkyl group.
38. A composition for pre-treatment of human keratin fibers prior
to bleaching said fibers or for post-treatment of said fibers after
bleaching said fibers, said composition comprising at least one
aminosilicone comprising at least one
aminoethylimino(C.sub.4-C.sub.8)alk- yl group, wherein said
composition is effective for the pre-treatment of human keratin
fibers prior to bleaching said fibers or the post-treatment of
human keratin fibers after bleaching said fibers.
39. A process for bleaching human keratin fibers comprising
applying a bleaching composition to said fibers, leaving said
composition on said fibers for a time sufficient to bleach said
fibers, and optionally rinsing and optionally drying said fibers,
and applying to said fibers, either immediately after said
bleaching or after an interval following said bleaching, a
post-treatment composition comprising at least one aminosilicone
comprising at least one aminoethylimino-(C.sub.4-C.sub.8)al- kyl
group, and optionally rinsing said fibers and optionally drying
said fibers.
40. A process for bleaching human keratin fibers comprising
applying to said fibers a pre-treatment composition comprising at
least one aminosilicone comprising at least one
aminoethylimino(C.sub.4-C.sub.8)alk- yl group, optionally rinsing
said fibers and optionally drying said fibers, applying a bleaching
composition to said fibers, leaving said composition on said fibers
for a time sufficient to bleach said fibers, and rinsing and drying
said fibers.
Description
[0001] This disclosure relates to the use, as a pre- or
post-treatment of a process for bleaching human keratin fibers,
such as hair, of a composition comprising at least one particular
aminosilicone, as defined herein.
[0002] This disclosure also relates to processes for bleaching
human keratin fibers, such as hair, comprising a pre-or
post-treatment with a composition comprising at least one
particular aminosilicone.
[0003] The natural shades of dark hair may be lightened in a
long-lasting manner by means of bleaching treatments. This is
likewise the case for shades artificially given to the hair by
means of direct dyes or oxidation dyes, and which it is desired to
remove.
[0004] The bleaching compositions used in these treatments comprise
ready-to-use thickened aqueous hydrogen peroxide compositions. For
example, these treatments may be in the form of anhydrous products
(powders or creams) comprising alkaline compounds (amines and
alkaline silicates), and a peroxygenated oxidizing reagent such as
ammonium or alkali metal persulfates, perborates or percarbonates,
which are diluted at the time of use with an aqueous hydrogen
peroxide composition.
[0005] However, these highly efficient treatments may cause
sensitization of the hair; the hair becomes drier and more
difficult to disentangle, with a coarse feel.
[0006] Other bleaching treatments use ready-to-use compositions
comprising anhydrous products (powders or creams) comprising
reducing agents, which are mixed at the time of use with an aqueous
composition optionally comprising a pH agent. These reducing
treatments can also cause sensitization of the hair.
[0007] Hitherto, to improve the condition of hair fibers after a
bleaching treatment, use has been made of rinse-out or leave-in
care products, such as conditioners, treating masks, treating
creams or sera.
[0008] These care products have the drawback of being temporary and
must be renewed each time the hair is washed.
[0009] In addition, they usually make the hair lank, rendering it
lifeless, with an unnatural slippery coated feel.
[0010] There is thus a need to improve the condition of the hair
after a bleaching treatment.
[0011] After extensive studies in this matter, the inventors have
discovered, entirely surprisingly and unexpectedly, that the use,
as a pre- or post-treatment on human keratin fibers, such as hair,
of a composition comprising at least one particular aminosilicone,
allows at least one of these problems to be solved. This discovery
forms at least a portion of the basis for at least one embodiment
disclosed herein.
[0012] A new embodiment therefore relates to the use, as a pre- or
post-treatment of a process for bleaching human keratin fibers,
such as hair, of a composition comprising at least one
aminosilicone comprising at least one
aminoethylimino(C.sub.4-C.sub.8)alkyl group.
[0013] An embodiment of the process is to improve the condition of
the hair after bleaching, so that the hair may become at least one
of softer, smooth from the root to the end, individualized, light,
supple and silky. Moreover, the hair may feel much more natural
than when a conditioner of the prior art is used after a bleaching
operation. In addition, the hair may disentangle well and may style
much more easily. The treatment may have the further advantage of
not modifying the lightening power of the bleaching treatment, and
the cosmetic effects thus produced may be long-lasting and visible
for at least six weeks.
[0014] As used herein, the phrase "improvement in the condition of
the fiber" means a reduction in the porosity or the alkaline
solubility of the fiber and an improvement in at least one cosmetic
property, for example, in the smoothness, softness and ease of
disentangling and of styling.
[0015] This effect can be remanent, i.e., long-lasting.
[0016] The porosity is measured by fixing at 37.degree. C. and at
pH 10, for two minutes, 2-nitro-para-phenylenediamine at 0.25% in
an ethanol/pH 10 buffer mixture (10/90 volume ratio).
[0017] The alkaline solubility corresponds to the loss of mass of a
sample of 100 mg of keratin fibers under the action of decinormal
sodium hydroxide for 30 minutes at 65.degree. C.
[0018] Another new embodiment relates to a bleaching process that
comprises applying to human keratin fibers, such as hair, which may
be wet or dry, washed or unwashed, a composition comprising at
least one aminosilicone comprising at least one
aminoethylimino(C.sub.4-C.sub.8)alk- yl group, leaving it to act at
room temperature or with a supply of heat, optionally rinsing said
fibers and then applying the bleaching composition, washing said
fibers, rinsing them and then drying them.
[0019] Another new embodiment relates to a bleaching process that
comprises applying a bleaching composition to human keratin fibers,
such as hair, washing said fibers with shampoo, rinsing them with
water and then applying a composition comprising at least one
aminosilicone comprising at least one
aminoethylimino(C.sub.4-C.sub.8)alkyl group to the wet or dry
fibers, leaving it to act at room temperature or with a supply of
heat, optionally rinsing said fibers and then drying them.
According to this post-treatment process, the composition may be
applied immediately after bleaching, or after an interval, and
repeatedly.
[0020] Aminosilicones
[0021] The at least one aminosilicone comprising at least one
aminoethylimino(C.sub.4-C.sub.8)alkyl group has, for example, the
following formula: 1
[0022] wherein:
[0023] A is chosen from linear and branched C.sub.4-C.sub.8
alkylene radicals, for example, C.sub.4 alkylene radicals, and m
and n are numbers such that the sum (n+m) can range, for example,
from 1 to 2000 and further, for example, from 50 to 150, n may be a
number ranging from 0 to 1999, for example, from 49 to 149, and m
may be a number ranging from 1 to 2000, for example, from 1 to
10.
[0024] The term "alkylene radical" means divalent saturated
hydrocarbon-based groups.
[0025] The viscosity of the at least one aminosilicone, for
example, can be greater than 25 000 mm.sup.2/s at 25.degree. C.
[0026] For example, this viscosity can range from 30 000 to 200 000
mm.sup.2/s at 25.degree. C. and further, for example, from 30 000
to 150 000 mm.sup.2/s at 25.degree. C.
[0027] The viscosity of the at least one aminosilicone is measured
at 25.degree. C. according to the standard "ASTM 445 Appendix
C".
[0028] The at least one aminosilicone has a weight-average
molecular mass, for example, ranging from 2000 to 1 000 000 and
further, for example, from 3500 to 200 000.
[0029] The weight-average molecular masses of the at least one
aminosilicone is measured by Gel Permeation Chromatography (GPC) at
room temperature, as polystyrene equivalents. The columns used are
styragel p columns. The eluent is THF, and the flow rate is 1
ml/minute. 200 .mu.l of a solution at 0.5% by weight of silicone in
THF are injected. The detection is performed by refractometry and
UV-metry.
[0030] One new embodiment involves using the at least one
aminosilicone in the form of an oil-in-water emulsion. The
oil-in-water emulsion may comprise at least one surfactant. The at
least one surfactant may be of any nature, for example, cationic
and/or nonionic.
[0031] The silicone particles in the emulsion may have a mean size
ranging, for example, from 3 to 500 nanometers, and further, for
example, from 5 to 300 nanometers, even further, for example, from
10 to 275 nanometers and even further, for example, from 150 to 275
nanometers. Such particle size is measured by a laser
granulometer.
[0032] An example of a silicone corresponding to this formulation
is DC2-8299.RTM. from the company Dow Corning.
[0033] The at least one aminosilicone may be used in the pre- or
post-treatment composition in an amount ranging from 0.01% to 20%
by weight relative to the total weight of the composition. For
example, this amount may range from 0.1% to 15% by weight and
further, for example, from 0.5% to 10% by weight relative to the
total weight of the composition.
[0034] The pre- or post-treatment composition may comprise any
ingredient conventionally used in cosmetics, such as in the field
of haircare. For example, it may comprise at least one additional
surfactant and/or polymer. These surfactants and polymers may be
chosen from nonionic, cationic, anionic and amphoteric surfactants
and polymers. Among the additional polymers, aminosilicones other
than the at least one aminosilicone disclosed herein may be
used.
[0035] The pre- or post-treatment composition may have a pH ranging
from 2 to 11, for example, from 4 to 9.
[0036] The pre-or post-treatment composition may be in various
forms, such as lotions, gels, creams, shampoos, sticks, mousses or
sprays. For some of these forms, it may be packaged in a
pump-dispenser bottle or in an aerosol container. In the case of an
aerosol, the composition may be combined with a propellant that may
be, for example, an alkane or a mixture of alkane, dimethyl ether,
nitrogen, nitrous oxide, carbon dioxide and haloalkanes, and also
mixtures thereof.
[0037] In one new embodiment, the pre- or post-treatment
composition may be in the form of a shampoo.
[0038] In this case, the composition comprises at least one
surfactant, for example, an anionic surfactant. The composition may
also comprise a mixture of surfactants comprising at least one
anionic surfactant, and at least one other surfactant chosen from
nonionic and amphoteric surfactants.
[0039] As mentioned above, the post-treatment composition may be
applied immediately after bleaching, or after an interval. The
expression "after an interval" means an application performed a few
hours, one day or several days, for example, from 1 to 60 days,
after bleaching.
[0040] According to one new embodiment, several applications can be
carried out between two bleaching operations.
[0041] The number of applications between two bleaching operations
may, for example, range from 1 to 60 and further, for example, from
2 to 30.
[0042] The bleaching compositions may be reducing or oxidizing.
[0043] When said bleaching compositions are reducing, they may be,
for example, in the form of ready-to-use compositions comprising
anhydrous products (powders or creams) comprising at least one
reducing agent, which is mixed, at the time of use, with an aqueous
composition optionally comprising a pH agent. The bleaching
compositions may also be in the form of aqueous ready-to-use
compositions comprising at least one reducing agent at the
appropriate pH. The at least one reducing agent may be chosen from,
for example, thiols such as cysteine, thiolglycolic acid,
thiolactic acid, salts thereof and esters thereof, cysteamine and
its salts, ascorbic acid, its salts and its esters, erythorbic
acid, its salts and its esters, and sulfites and sulfinates, for
example, sodium hydroxymethanesulfinate.
[0044] When said bleaching compositions are oxidizing, they
comprise at least one oxidizing agent, for example, hydrogen
peroxide and compounds capable of producing hydrogen peroxide by
hydrolysis, such as urea peroxide or persalts, such as perborates,
percarbonates and persulfates.
[0045] The oxidizing bleaching compositions may be, for example, in
the form of anhydrous products (powders or creams) comprising
alkaline compounds (amines and alkaline silicates), and a
peroxygenated reagent such as ammonium or alkali metal persulfates,
perborates or percarbonates, which may be diluted, at the time of
use, with an aqueous hydrogen peroxide composition.
[0046] The bleaching compositions may also result from the mixing,
at the time of use, of the anhydrous powder of the peroxygenated
reagent with an aqueous composition comprising alkaline compounds
and another aqueous composition comprising hydrogen peroxide.
[0047] The oxidizing bleaching composition may also be in the form
of ready-to-use thickened aqueous hydrogen peroxide
compositions.
[0048] The pre- or post-treatment composition may be used in
rinse-out or leave-in mode, i.e., its application may or may not be
followed by a rinsing operation.
[0049] In the first case, the acting time of the pre- or
post-treatment composition ranges from a few seconds to 60 minutes,
for example, ranging from 30 seconds to 15 minutes.
[0050] The application temperature of the pre- or post-treatment
composition may range from 10.degree. C. to 70.degree. C. For
example, the application temperature may range from 20 to
60.degree. C., such as room temperature.
[0051] The examples that follow are intended to illustrate
embodiments disclosed herein, without, however, being limiting in
nature.
EXAMPLES
[0052] The following composition was prepared:
[0053] (expressed as grams of active material)
1 Composition Polydimethylsiloxane sold under the name 2 DC2-8299
.RTM. by Dow Corning Demineralized water . . . qs 100
[0054] The composition was applied to natural chestnut-brown
hair:
[0055] 1/ as a pre-treatment to an oxidizing bleaching using the
commercial product Platifiz.RTM. from the company L'Oral;
[0056] 2/ as a post-treatment to an oxidizing bleaching using the
commercial product Platifiz.RTM. from the company L'Oral.
[0057] In pre-treatment, the hair was thus treated with this
composition for 30 minutes at a temperature of 37.degree. C.,
rinsed with water, bleached with Platifiz.RTM. and rinsed again
thoroughly before being dried.
[0058] As a post-treatment, the hair was bleached with
Platifiz.RTM. and rinsed with water, before being treated with the
composition, and then rinsed again thoroughly before being
dried.
[0059] After these treatments, the hair was smoother, softer and
easier to disentangle than in the absence of a pre- or
post-treatment.
[0060] In addition, the level of bleaching was not altered by the
treatments.
* * * * *